SUBFAMILY HYPENINAE
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Dichromia laesalis Walker
     Hypena laesalis Walker, [1859] 1858, List Specimens lepid. Insects Colln Br. Mus., 16: 62.
    Hypena semiclusalis Walker, [1866] 1865, List Specimens lepid. Insects Colln Br. Mus., 34: 1511.
 

Dichromia laesalis
Figure 446
Figure 450


Diagnosis.
This and the next two species are very difficult to separate, all having similar forewing facies consisting of a transverse to oblique, triarcuate postmedial separating a rich dark brown basal zone from a paler distal one, the latter including the apical lens. The postmedial is more often transverse in laesalis and may be only weakly triarcuate, particularly in females. When the apical lens is surrounded by blackish suffusion (a variable feature), this tends to be more posterior and interior than distal. Males can readily be distinguished from the next species by the cilia over the basal half of the antenna, where they are slightly longer than the width of the flagellomere. In the male genitalia the valve costa is more or less straight, terminating in a more acute apex than in the other species. The margin curves evenly away ventrally from this to just distal from the centre of the valve. The aedeagus apex and vesica have small clusters of spines. The female genitalia lack signa.

Taxonomic note. This species was transferred to Dichromia by Lödl (1999e), but placed as a synonym of indicatalis (see above) by Poole (1989). The holotype of laesalis (India) is female but that of semiclusalis (Java) has very similar facies and is male; the antennal cilia are long.

Geographical range. The species may extend through the Indo-Australian tropics to as far east as the Solomons, but its extent needs to be investigated in more detail. It is not noted for Australia in Nielsen et al. (1996).

Habitat preference. Only old material has been seen, mostly from the lowlands, but much material lacks altitude data.

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